too close to nature??

I love nature, from a distance. I suspect that one of the reasons I enjoy my balcony so much is because it;s high enough that I can enjoy a wide view of trees and grass and water without actually slogging through mud or getting bitten by insects. However, today nature came a little too close for comfort. I happened to glance out to my balcony (it was a bit too chilly to spend much time out there) and saw two pigeons walking around, checking out the place. They looked like they had nesting on their little bird minds but when I opened the door they flew away. If they show up again I will shoo them toward the old fort. There are lots of more interesting and natural looking places to nest in around those buildings, or maybe they could just consider nesting in a tree. That might be a radical thought for a city pigeon but I think they could adjust. It would have to be a more comfortable life that having me chase them off with a broom every day.